(Cross-posted here: https://github.com/jbalogh/django-nose/issues/129)
In settings.py I have two databases listed:
DATABASES = {
'default': {
'ENGINE': 'mysql_pymysql',
'NAME': 'OST_DEV_1',
'USER': 'root',
'PASSWORD': '',
'HOST': 'localhost',
'PORT': '3306',
},
'umc': {
'ENGINE': 'mysql_pymysql',
'NAME': 'UMC',
'USER': 'root',
'PASSWORD': '',
'HOST': 'localhost',
'PORT': '3306',
}
}
If I run the tests without REUSE_DB, they work, but slowly (nearly 2 minutes spent just on creating/destroying the databases):
bash
./manage.py test myapp
But this fails:
REUSE_DB=1 ./manage.py test myapp
DatabaseError: (1146, u"Table 'OST_DEV_1.tblMfg' doesn't exist")
This makes sense, as tblMfg is in the UMC database, not OST_DEV_1. Is there a way to tell django-nose where to find tblMfg? Note that my tests themselves don't reference tblMfg -- I'm sticking to 1+1 == 2 for now.
We currently use 'using' manually for tables that are in UMC:
active_mfgs = Mfg.objects.using('umc').filter(status="ACTIVE")
Related
I am trying to connect Django to the PostgreSQL database, but this is my first time doing it, so I am not sure how exactly to do it. The problem seems to be with the line, where the password is.
settings.py -
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': '<db_name>',
'USER': '<db_username>',
'PASSWORD: '<password>',
'HOST': 'db_hostname_or_ip>',
'PORT': 'db_port',
}
}
When I try to make migrations in my prompt, (python manage.py makemigrations) I am getting the error mentioned in the title. Can anybody help me please?
Your code
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': '<db_name>',
'USER': '<db_username>',
'PASSWORD: '<password>',
'HOST': 'db_hostname_or_ip>',
'PORT': 'db_port',
}
}
What it actually should be
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': '<db_name>',
'USER': '<db_username>',
'PASSWORD': '<password>',
'HOST': 'db_hostname_or_ip>',
'PORT': 'db_port',
}
}
Actually you're forgetting the closing qoute after PASSWORD
I have a database created from non-django app and have defined the database connection info like below
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': os.environ.get('POSTGRES_DB'),
'USER': os.environ.get('POSTGRES_USER'),
'PASSWORD': os.environ.get('POSTGRES_PASSWORD'),
'HOST': os.environ.get('POSTGRES_HOST'),
'PORT': os.environ.get('POSTGRES_PORT'),
}
}
Unfortunately, when I migrate the django admin related tables, they all go into the default database.
I know that it is possible to declare multiple databases and separate read and write actions to different databases; however, what I would like to do is to have all the default django admin related tables to be created into another database. Say I declare a second database like below, how do I make sure that django admin related datas get migrated to the second database and also read from that when I login to django admin?
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': os.environ.get('POSTGRES_DB'),
'USER': os.environ.get('POSTGRES_USER'),
'PASSWORD': os.environ.get('POSTGRES_PASSWORD'),
'HOST': os.environ.get('POSTGRES_HOST'),
'PORT': os.environ.get('POSTGRES_PORT'),
},
'admin':{
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': os.environ.get('ADMIN_POSTGRES_DB'),
'USER': os.environ.get('ADMIN_POSTGRES_USER'),
'PASSWORD': os.environ.get('ADMIN_POSTGRES_PASSWORD'),
'HOST': os.environ.get('ADMIN_POSTGRES_HOST'),
'PORT': os.environ.get('ADMIN_POSTGRES_PORT'),
}
}
first you must leave default dictionary as empty
then define your database for admin and non admin
for examample do this
DATABASES = {
'default':{},
'nonAdmin': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': os.environ.get('POSTGRES_DB'),
'USER': os.environ.get('POSTGRES_USER'),
'PASSWORD': os.environ.get('POSTGRES_PASSWORD'),
'HOST': os.environ.get('POSTGRES_HOST'),
'PORT': os.environ.get('POSTGRES_PORT'),
},
'admin':{
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': os.environ.get('ADMIN_POSTGRES_DB'),
'USER': os.environ.get('ADMIN_POSTGRES_USER'),
'PASSWORD': os.environ.get('ADMIN_POSTGRES_PASSWORD'),
'HOST': os.environ.get('ADMIN_POSTGRES_HOST'),
'PORT': os.environ.get('ADMIN_POSTGRES_PORT'),
}
}
then after that you can migrate database using
./manage.py migrate --database=admin
or
./manage.py migrate --database=nonAdmin
If you don’t want every application to be synchronized onto a particular database, you can define a database router that implements a policy constraining the availability of particular models.
by using this method
allow_migrate(db, app_label, model_name=None, **hints)
you can reference this document https://docs.djangoproject.com/en/3.0/topics/db/multi-db/#topics-db-multi-db-routing
My database and project work great using this database setting:
DATABASES = {
'default': {
'ENGINE': 'django.contrib.gis.db.backends.postgis',
'NAME': 'myprojectdb',
'USER': 'myprojectuser',
'PASSWORD': 'my_secret_password',
'HOST': 'localhost',
'PORT': '5432',
'ATOMIC_REQUESTS': True
},
}
But I want to add a 'readonly' database entry for my readonly db user, like this, so that I can run django-sql-explorer:
DATABASES = {
'default': {
'ENGINE': 'django.contrib.gis.db.backends.postgis',
'NAME': 'myprojectdb',
'USER': 'myprojectuser',
'PASSWORD': 'my_secret_password',
'HOST': 'localhost',
'PORT': '5432',
'ATOMIC_REQUESTS': True
},
'readonly': {
'ENGINE': 'django.contrib.gis.db.backends.postgis',
'NAME': 'myprojectdb',
'USER': 'myprojectreadonly',
'PASSWORD': 'your_eyes_only_secret',
'HOST': 'localhost',
'PORT': '5432',
'ATOMIC_REQUESTS': True
}
}
And now django throws a couple different errors. If I try to do anything with migrations, I get:
django.db.utils.ProgrammingError: permission denied for relation django_migrations
If I try to runserver, I get:
"AUTH_USER_MODEL refers to model '%s' that has not been installed" % settings.AUTH_USER_MODEL
django.core.exceptions.ImproperlyConfigured: AUTH_USER_MODEL refers to model 'users.User' that has not been installed
It seems like when I add the second database setting, django is attempting to use that for migrations, running the server, etc, even though it's not 'default'
If I comment out the second entry, everything works great again.
Any recommendations on how to correct this?
Edit: If I change the settings to use the same username and password, everything works great, so it's not just an issue of django being confused on names. IE:
DATABASES = {
'default': {
'ENGINE': 'django.contrib.gis.db.backends.postgis',
'NAME': 'myprojectdb',
'USER': 'myprojectuser',
'PASSWORD': 'my_secret_password',
'HOST': 'localhost',
'PORT': '5432',
'ATOMIC_REQUESTS': True
},
'readonly': {
'ENGINE': 'django.contrib.gis.db.backends.postgis',
'NAME': 'myprojectdb',
'USER': 'myprojectuser',
'PASSWORD': 'my_secret_password',
'HOST': 'localhost',
'PORT': '5432',
'ATOMIC_REQUESTS': True
}
}
The two configurations shares the same database names 'NAME': 'myprojectdb'
So when you try to migrates dbname seems to conflicts so the applications is having an indecision on which to use The previous or the later
DATABASE_OPTIONS = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'student',
'USER': 'root',
'PASSWORD': 'pooja',
'HOST': 'localhost',
'PORT': 3306,
'init_command': 'SET storage_engine=INNODB, SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED'
},
}
Exception IS:
raise ImproperlyConfigured("settings.DATABASES is improperly configured. "
django.core.exceptions.ImproperlyConfigured: settings.DATABASES is improperly configured. Please supply the ENGINE value. Check settings documentation for more details.
I am using mysql database I am getting above exception in django while migrating model to the database please let me know what is the error what i ma doing wrong here.
thanks you for your reply
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'student',
'USER': 'root',
'PASSWORD': 'pooja',
'HOST': 'localhost',
'PORT': 3306,
'init_command': 'SET storage_engine=INNODB, SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED'
},
}
I'm currently using a single PostgreSQL database, with standard settings.
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'postgres',
'USER': 'postgres',
'PASSWORD': password,
'HOST': 'localhost',
'PORT': '',
}
}
My question is, can I keep using the default postgres setup, and just perform CREATE EXTENSION postgis in the shell to get access to postgis features? Or do I need to add a postgis database separately, like below:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'postgres',
'USER': 'postgres',
'PASSWORD': password,
'HOST': 'localhost',
'PORT': '',
}
'geodata': {
'ENGINE': 'django.contrib.gis.db.backends.postgis',
'NAME': 'geodjango',
'USER': 'geo',
},
}
You can keep using the default postgres setup, just changing the engine to: django.contrib.gis.db.backends.postgis
DATABASES = {
'default': {
'ENGINE': 'django.contrib.gis.db.backends.postgis',
'NAME': 'postgres',
'USER': 'postgres',
'PASSWORD': password,
'HOST': 'localhost',
'PORT': '',
}
}